<i>Pure. Professional. Performance.</i><br/>As the most critically acclaimed model in the M-Series line, the ATH-M50 is praised by top audio engineers and pro audio reviewers year after year. Now, the ATH-M50x professional monitor headphones feature the same coveted sonic signature, with the added feature of detachable cables. From the large aperture drivers, sound isolating earcups and robust construction, the M50x provides an unmatched experience for the most critical audio professionals.<br/>Also available in white (<a href="http://www.audio-technica.com/cms/headphones/1000c1b0c122836e/index.html">ATH-M50xWH</a>) and limited edition blue (<a href="http://www.audio-technica.com/cms/headphones/c8feef8909dbc020/index.html">ATH-M50xBL</a>).<br/><b>More About the M-Series Headphones</b><br/>Critically acclaimed M-Series professional monitor headphones deliver accurate audio and outstanding comfort, perfect for long sessions in the studio and on the go. Contoured earcups seal tight for excellent sound isolation, with minimal bleed. And the pro-grade materials are durable, yet comfortable. Find out why online reviewers, top audio engineers, and cult followers agree, M-Series is an unmatched combination of audio and build-quality that gets the job done. Hour after hour, year after year.<br/><a href="http://www.audio-technica.com/monitorheadphones/" target="_blank"><b>VISIT THE STUDIO HEADPHONES MICROSITE</b></a>

How many db does ATH-M50x passively isolate?

I was wondering how much db will these headphones isolate noise? Using these in a studio with noise from surrounding offices, sometimes loud so I want to isolate these sounds, as I know this might not completely cut out all of the sound.